Home / 1,186,209,763.07-1,636,969,447.01-657,572,409.59

Finding the Fourth Proportional to 1,186,209,763.07, 1,636,969,447.01 and 657,572,409.59

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Solution

The fourth proportional to 1,186,209,763.07, 1,636,969,447.01 and 657,572,409.59 is: 907,449,910.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,209,763.07 : 1,636,969,447.01 = 657,572,409.59 : x
  2. Step 2: Convert to fraction form
    1,186,209,763.07/1,636,969,447.01 = 657,572,409.59/x
  3. Step 3: Cross multiply
    1,186,209,763.07x = 1,636,969,447.01 × 657,572,409.59
  4. Step 4: Simplify right side
    1,186,209,763.07x = 1,076,425,943,689,034,752
  5. Step 5: Solve for x
    x = 1,076,425,943,689,034,752/1,186,209,763.07
  6. Step 6: Final answer
    x = 907,449,910.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.